import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpRequestDecoder;
import io.netty.handler.codec.http.HttpRequestEncoder;
import io.netty.handler.codec.http.HttpResponseEncoder;
import io.netty.handler.stream.ChunkedWriteHandler;

public class Server {
	public static void main(String[] args) throws InterruptedException {
		final int port = 8888;

		EventLoopGroup bossGroup = new NioEventLoopGroup(); // (1)
		EventLoopGroup workerGroup = new NioEventLoopGroup();
		try {
			ServerBootstrap b = new ServerBootstrap(); // (2)
			b.group(bossGroup, workerGroup)
					.channel(NioServerSocketChannel.class) // (3)
					.childHandler(new ChannelInitializer<SocketChannel>() { // (4)
						@Override
						public void initChannel(SocketChannel ch) throws Exception {
							ch.pipeline().addLast("http-decoder",
									new HttpRequestDecoder());
							ch.pipeline().addLast("http-encoder",
									new HttpRequestEncoder());
							// 聚合器，把多个消息转换为一个单一的FullHttpRequest或是FullHttpResponse
							ch.pipeline().addLast("http-aggregator",
									new HttpObjectAggregator(65536));
//							// 服务端，对响应编码
//							ch.pipeline().addLast("http-encoder",
//									new HttpResponseEncoder());
							// 块写入处理器
							ch.pipeline().addLast("http-chunked",
									new ChunkedWriteHandler());
							// 自定义服务端处理器
							ch.pipeline().addLast(new HttpServerRequestHandler());
						}
					});
//					.option(ChannelOption.SO_BACKLOG, 128)          // (5)
//					.childOption(ChannelOption.SO_KEEPALIVE, true); // (6)

			// Bind and start to accept incoming connections.
			ChannelFuture f = b.bind(port).sync(); // (7)

			// Wait until the server socket is closed.
			// In this example, this does not happen, but you can do that to gracefully
			// shut down your server.
			f.channel().closeFuture().sync();
		} finally {
			workerGroup.shutdownGracefully();
			bossGroup.shutdownGracefully();
		}
	}
}
